Today's Message Index:
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1. 05:24 AM - Re: Clearances for Vetterman 4-pipe on Older RV-4 O-360 (PGLong@aol.com)
2. 08:22 AM - Re: Clearances for Vetterman 4-pipe on Older RV-4 O-360 (Robin Marks)
3. 09:11 AM - cowling air inlets (glennpaulwilkinson)
4. 12:41 PM - Re: Clearances for Vetterman 4-pipe on Older RV-4 O-360 (rob ray)
5. 12:43 PM - Re: Clearances for Vetterman 4-pipe on Older RV-4 O-360 (mbick)
6. 12:50 PM - Re: Too Hot to handle... (rob ray)
7. 01:18 PM - Re: cowling air inlets (rob ray)
8. 06:13 PM - Re: cowling air inlets (PGLong@aol.com)
9. 09:42 PM - Regarding Vetterman 4-pipe on RV-4 (Pete Waters)
Message 1
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| Subject: | Re: Clearances for Vetterman 4-pipe on Older RV-4 O-360 |
Had the same problem with my -4. Cowling got so warm in one area it turned
almost to jelly. Glued a piece of foil coated (asbestos?) fabric to the cowling
in this area and problem solved. If your interested, I could find out from
my race car friend what it was and where he got it.
Pat Long
PGLong@aol.com
N120PL
RV4
Bay City, Michigan
3CM
Message 2
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| Subject: | Clearances for Vetterman 4-pipe on Older RV-4 O-360 |
Pat,
I am interested in the product name & source plus the best
choice of adhesive!
Robin
RV-4 Sold
RV-6A 300 Hours
RV-10 Building
________________________________
[mailto:owner-rv4-list-server@matronics.com] On Behalf Of PGLong@aol.com
Sent: Thursday, June 29, 2006 5:22 AM
O-360
Had the same problem with my -4. Cowling got so warm in one area it
turned almost to jelly. Glued a piece of foil coated (asbestos?) fabric
to the cowling in this area and problem solved. If your interested, I
could find out from my race car friend what it was and where he got it.
Pat Long
PGLong@aol.com
N120PL
RV4
Bay City, Michigan
3CM
Message 3
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| Subject: | cowling air inlets |
My -4 always runs cool except on the hottest GA summer days and was
considering reducing the size of the cooling air inlets to reduce
drag/increase speed and normalize temps.
Has anyone out there done this before? What were your results? Comments?
Glenn
RV-4 N654RV @ OKZ
Message 4
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| Subject: | Clearances for Vetterman 4-pipe on Older RV-4 O-360 |
Robin, Try Wicks Aircraft supply, the product is called Thermocool...
RR
Robin Marks <robin@mrmoisture.com> wrote:
Pat,
I am interested in the product name & source plus the best choice
of adhesive!
Robin
RV-4 Sold
RV-6A 300 Hours
RV-10 Building
---------------------------------
From: owner-rv4-list-server@matronics.com [mailto:owner-rv4-list-server@matronics.com] On Behalf Of PGLong@aol.com
Sent: Thursday, June 29, 2006 5:22 AM
Had the same problem with my -4. Cowling got so warm in one area it turned
almost to jelly. Glued a piece of foil coated (asbestos?) fabric to the cowling
in this area and problem solved. If your interested, I could find out from my
race car friend what it was and where he got it.
Pat Long
PGLong@aol.com
N120PL
RV4
Bay City, Michigan
3CM
---------------------------------
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Message 5
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| Subject: | Clearances for Vetterman 4-pipe on Older RV-4 O-360 |
Summit racing has a pretty good online store
http://store.summitracing.com/egnsearch.asp?N=4294923429+4294923290+115+4294
853962
_____
[mailto:owner-rv4-list-server@matronics.com] On Behalf Of PGLong@aol.com
Sent: Thursday, June 29, 2006 8:22 AM
Had the same problem with my -4. Cowling got so warm in one area it turned
almost to jelly. Glued a piece of foil coated (asbestos?) fabric to the
cowling in this area and problem solved. If your interested, I could find
out from my race car friend what it was and where he got it.
Pat Long
PGLong@aol.com
N120PL
RV4
Bay City, Michigan
3CM
Message 6
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| Subject: | Re: Too Hot to handle... |
Pedro, Wicks Aircraft supply has the Thermocool product discussed previously. www.wicksaircraftsupply.com I also cut 2" off my lower cowl lip to give the pipes a bit more room to exit without melting the lower cowl. See ya!
RR
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Today's Message Index:
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1. 08:56 PM - Clearances for Vetterman 4-pipe on Older RV-4 O-360 (Pete Waters)
________________________________ Message 1 _____________________________________
Time: 08:56:59 PM PST US
Guys,
I've got an older RV-4, 1988 vintage, with an O-360 and a fixed-pitch prop
(and cowling). My old exhaust system had to go due to cracks, and I'm trying
to install a Vetterman 4-pipe system that I bought. My concern is, the ball joint
of the pipe off the number 2 cylinder comes to within about 1/2 to 3/8 inch
of the cowling fiberglass. Larry Veterman's instructions say that the pipes
should be 3/4 inch from the cowling, minimum.
Anybody got any experience with this? After all the metal-bending I've down
so far, I don't feel like switching to a crossover... and I might end up with
the same problem.
Thanks,
Pedro
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Message 7
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| Subject: | Re: cowling air inlets |
Glenn,
I helped my neighbor convert his stock RV4/160HP from the std cowl to a Sam James
Plenum and round inlet cowl and gear legs/wheelpants. I flew alongside him
in my 150HP/Warnke prop (at the time) Bandit and could actually beat him by
a few knots in a flat-out drag race.
The conversion was long and complex requiring 2 months of downtime cutting
the cowling, splicing the parts and glassing them on and countless fitting and
re-fitting the spinner, plenum and trimming the baffling, moving oil cooler,
etc. Then came gear leg removal, wheelpant removal and replacement. Finally in
primer we rolled the finished product out and took it up for a test flight with
me chasing in my stock RV4. I could still hang with him across the board and
had identical results in the flat out drag race....!!! It did run cooler across
the board though...
Personally, I would take the money and invest it in 100LL and go fly...alot!
Did it cost over $1200: yes
Was it one big giant pain in the butt: yes
Would he do it again...no!
My 2 cents...
RR
<gpww@alltel.net> wrote:
My -4 always runs cool except on the hottest GA summer days and was considering
reducing the size of the cooling air inlets to reduce drag/increase
speed and normalize temps.
Has anyone out there done this before? What were your results? Comments?
Glenn
RV-4 N654RV @ OKZ
---------------------------------
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Message 8
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| Subject: | Re: cowling air inlets |
My -4 always ran cool and I could not get the oil much above 100 degrees. I
closed off about half the room for exit air (where the exhaust exits also) and
this allowed the oil to get up to where the vernatherm would keep it at 180.
The cylinder head and EGT temps did not change where I could notice. Still
running 300 degrees cylinder head temp and 1200 EGT. Thinking about closing
off this area more and making it an adjustable closure so it would work in the
cooler months. My inlets are still stock. As it is, I can just get up to 180
if I fly somewhat hard and the day is warm........
Pat Long
PGLong@aol.com
N120PL
RV4
Bay City, Michigan
3CM
Message 9
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| Subject: | Regarding Vetterman 4-pipe on RV-4 |
Guys,
Thanks for all the inputs. I've already ordered some aluminum woven silica
from Spruce. I'll give that a try, check it flight-flight, and let you know
how it works.
Thanks,
Pedro
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